Hearing results and surgical method
The canal wall-down tympanoplasty group and tympanoplasty group significantly improved in AC changes at every frequency. ABG results in the canal wall-down tympanoplasty group showed improvement at every frequency. In the tympanoplasty group, ABG at all frequencies except 4,000 (P =.069) significantly improved. BC changes in the canal wall-down tympanoplasty group and tympanoplasty group were significantly improved at 500, 1000, 2000 Hz (Fig 2).
Fig 2 Analysis by surgical methods (tympanoplasty vs. canal wall-down tympanoplasty).